Hi

[RgbMoreFps]

i want to change the legacy to uefi can someone help me

[itsmyname]

@RgbMoreFps  -- two thoughts:

1. your motherboard must support UEFI.  I presume that it does.

2. You may need a few steps:

• download the free "Macrium Reflect" software, and make a "bootable" file (either on DVD or on an empty USB memory-stick)
• purchase a new disk-drive
• connect it, without disconnecting your current disk-drive
• enter BIOS SETUP, and select UEFI
• change the "boot order" to first boot from that DVD or that USB memory-stick
• save/exit from BIOS SETUP
• boot into Macrium Reflect
• choose to "clone" from the current disk-drive onto the new disk-drive
• restart, and change the "boot order" to boot from the new disk-drive

This may be necessary, because your motherboard, while running in UEFI mode, will not boot from your "legacy" disk-drive.

Or, purchase a new disk-drive, switch to UEFI mode, and install Windows onto it. Then, copy your Personal Files from "old" to "new" disk-drive.

[RgbMoreFps]

there a option to boot to uefi 

[itsmyname]

@RgbMoreFps -- i want to change the legacy to uefi   ////   there a option to boot to uefi 

Are you saying that your computer does NOT have an option to enable UEFI ?

[RgbMoreFps]

Yes

[itsmyname]

@RgbMoreFps -- Yes

Then, you need to replace the motherboard to one that does support UEFI.

Changing the motherboard will also require you to purchase a new license to run Windows,

because your current license is "tied" to your current motherboard -- Microsoft states that you cannot transfer the original license to a different computer.

[RgbMoreFps]

now my computer is die

[itsmyname]

@RgbMoreFps -- now my computer is die

Is your computer less than 12 months old? If so, then contact HP Support, to open a claim against the HP Warranty, to get HP to repair/replace your computer, at HP's expense.

Otherwise, tell us more about the symptoms. 

Does it react at all when you press the ON/OFF button?

Do you hear any noise from the fans inside the computer?

[RgbMoreFps]

Its 8 year old computer and no display and fans loud 

[itsmyname]

@RgbMoreFps -- 8 years old, and now "dead"

Sad news. Is it time for you to purchase a new computer, that runs Windows 11 ?

You may be able to take the disk-drive out of the older computer, and temporarily connect it as a "secondary" disk-drive in the new computer, to copy all your Personal Files.